Revert "smdk4412-common: audio: remove old workaround for call audio issues"

This reverts commit 32ed0f56bc77bf5817e5cdc9d40f7a4082cc9544.

There are reports of cases in which this still is happening.

Change-Id: I0e49a3ff8476ef6212233a38f0d96642710e991e
(cherry picked from commit 60fff3489ba5ac717cb78a1855c0ef7c03fcaf18)